Built myself an ollie height trainer. Goes from 2" to 13". So I can work up on this before trying anything solid. : r/NewSkaters
Amazon.com : Skater Trainers Skateboarding Training Accessories-Learn Skate Tricks Faster and Safer-Works on Any Skateboard - Beginners Kids, Teens, Adults, Boys and Girls -Ollie Kickflip - Black (2 - 4 Packs) : Sports & Outdoors
How To Ollie & Ollie Higher in 5 Easy Steps [With Video Tutorials] - Goskate.com